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kayakchampeen wrote: In a nutshell:
Probably way more info than anyone really needed to hear but what the hell, hope some of this adds a bit of clarification....cheers
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kayakchampeen wrote: In a nutshell:
Brasca 1,2,and, 4 are basically the same blade (4 is smaller, 2 has more cant)
Brasca 3 is a copy of the original Lettmann Nordic. which is itself similar to (but not exactly like)the Rasmussen and Gut
Brasca 5 is a very nice blade, little discussed, it is a copy of a german sprint blade from a few years back originally made by F.E.S.. Clint Robinson uses this blade for sprint. Ronald Rauhe still does also in the 200m. It's what I would call a "BrascaMussen" like equal parts teardop and rasmussen. It is by far the most stable/powerful blade I've used. I really like it, but it may be too much for the ski/distance
Brasca 6 and 7 are different sizes of a blade with even more teardop shape and twist than B4, instant power right at the catch, The Gamma shape is closest to this brasca but still quite different.
Brasca 8 is a copy of a lettmann warp. like a b4 that is way elongated and skinny, still considered teardrop, it has unique characteristics because the blade is so long. was popular in Sprint but has fallen out of fashion to some extent.,
Never tried the Brasca 9 or 10, can't speak to this.
Epic is basically a SET endorphin (like a slightly detuned B4, Less lip on foil) which makes it smoother in rough water and more forgiving of as poor catch.
Jantex alpha is a Gut(Rasmussen style) blade
Beta is a B1/B4 clone depending on size.
Gamma is fairly unique, although many others make this shape now,
Even many sprint paddlers like Adam Van Kouverden switched to this shape from an FES or Gut style blade (hard to tell which, both of his are Patasi Turbo versions of the styles respectively)
There are few outliers in the pantheon of wing design. The original Swedish wing noone uses anymore, a few early parallel blades with practically no cant, Plastex Bionic, and Lendal Kinetic wing, none of which are really used to any extent in racing.
So that really makes only about 5 or 6 semi-original designs:
B1/B4
Rasmussen (which includes Gut and original Van Dusen Zero)
Lettmann Nordic
Lettmann Warp
B6/7
FES
Vandusen 8/Jantex Gamma etc..
It really comes down to preference. Teardop blades tend to provide front-loaded power, at the expense of stability at the end of their stroke. Ultimately it's probably easier to maintain a high cadence with these unless it's the largest size. Stew is correct that the power is only as good as the catch is precise.
Parallel blades provide a more linear application of power and behave well throughout the stroke. They are easier to use when dog tired and are easier on the body. I still think the original Lettmann Nordic (fenn 1, B3) is still one of the best offerings
out there, sooo smoooth and predictable. Catch requires a bit more downward component to seat blade properly than teardop. These blades really encourage and develop textbook wing technique (think barton mold)
Gamma as I have mentioned in other threads, feels less "wingish" and more just like a big Euro blade. Uniquely, the available power really comes on as the boat speed and cadence increase, It's been described as having multiple gears. Catch and exit are real smooth and the power is delivered in a distinct spike right in mid stroke. Which means that although it is really ergonomic, it does not provide as much structure at the catch as a brasca or as much at the back of the stroke as a parallel blade.
Ultimately if you can pull a B6, I think it has the greatest potential for real boat speed, but it's not very good for confused water and demands vigilant attention and vertical stroke.
If winning a race were less of a concern, the nordic and FES are the most fun to paddle with, and are the most confidence-inspiring designs. Still plenty powerful but just harder to spool up the cadence really high with. (but a pleasure to use compared to a spastic brasca stroke)
Gamma is smooth, fast, and good in the rough, but places more demands on knowing exactly how to time the brief spike in power to the leg drive and rotation, and a heightened feel for the water and comfort in the boat because it does not impart a great deal of stability to the boat throughout the stroke. It is also more taxing aerobically and less of an anaerobic grind than either parallel or teardrop. Max Hoff still owns the fastest 1000m K1 time ever recorded with a Gamma if that pertains to your question at all.
It goes without saying that many iterations of these basic designs are available from a variety of manufacturers. It still comes down to preference. The only wing I've ever really despised was a Lettmann Warp (owing as much to shaft as blade design.)
One more thing, blades with alot of cant like a B2/B6 need a stiffer shaft and slightly shorter shaft length, so that the blade does not deflect even futher and compromise the geometry whereas the rasmussen and even Gamma with alot less cant seem to do well with a flexier shaft that allows the catch to essentially induce cant into the system, and also a slightly longer shaft than a Brasca.
Probably way more info than anyone really needed to hear but what the hell, hope some of this adds a bit of clarification....cheers
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Kayaker Greg wrote: the Gamma under these circumstances, where as the Epic almost either creates a little "braking effect" if trying to spear the fish at higher speeds or the catch not being as solid as the Gamma.
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fredrik wrote:
I think I have noticed this "braking effect", where it is harder to make the blade catch-up with the passing water, but for me this is typically in currents and surfing downwind - in the 14-15-16+ kph range. Are we talking about the same?
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Kayaker Greg wrote:
fredrik wrote:
I think I have noticed this "braking effect", where it is harder to make the blade catch-up with the passing water, but for me this is typically in currents and surfing downwind - in the 14-15-16+ kph range. Are we talking about the same?
Certainly more noticeable at those kind of speeds yes.
As I also surf my kayaks these speeds are easy to surpass when sprinting and catching waves.
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7ender wrote: Hate to thread jack, but you guys clearly know alot about paddles!
I have this Lendal Carbon wing, but can't find ANY information about it. Is it a good paddle? Iv'e never used anything else, so I have nothing to compare to. What do you guys think?
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